<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" :model="filters">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <!--
      :data="departments" - 列表数据
      highlight-current-row v-loading="listLoading" - 当前行高亮
      @selection-change="selsChange" - 选项改变就是触发
      v-loading="listLoading" - 记载框
    -->
    <el-table :data="departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="sn" label="编号" width="120" sortable>
      </el-table-column>
      <el-table-column prop="name" label="名称" width="100" sortable>
      </el-table-column>
      <el-table-column prop="dirPath" label="路径" width="100" sortable>
      </el-table-column>
      <el-table-column prop="state" label="状态" width="120" sortable>
        <template scope="scope">
          <span v-if="scope.row.state==0" style="color: red">禁用</span>
          <span v-else style="color: green">启用</span>
        </template>
      </el-table-column>
      <el-table-column prop="manager.username" label="部门经理" width="120" sortable>
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" width="120" sortable>
      </el-table-column>
      <el-table-column label="操作">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :page-size="pageSize" :total="totals" :current-page="currentPage" style="float:right;">
      </el-pagination>
    </el-col>

    <!--编辑界面-->
      <!--
          title="添加或修改" - 标题
          :visible.sync="saveFormVisible" - 控制当前对话框是否显示 - 默认为false不显示
          :close-on-click-modal="false" - 点击对话框以外的区域不关闭
        -->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <!--
            :model="saveForm"  - 表单绑定模型数据对象saveForm
            label-width="80px"  - 标签的宽度
            :rules="saveFormRules" - 验证规则 - 表单项校验
            ref="saveForm" - 为当前对话框取名saveForm - 做表单校验

            label="姓名" - 标签名字
            prop="name" - 要做校验的时候必须要，不做校验就没有必要
            v-model="saveForm.name" - 双向绑定
            auto-complete="off" - 自动完成 - 关闭

          -->
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="编号" prop="sn">
          <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="部门经理">
          <el-select v-model="saveForm.manager_id" placeholder="请选择">
            <el-option v-for="item in managers"
                       :label="item.username"
                       :value="item.id">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}</span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="上级部门">
          <!--
            el-cascader - 级联框
            v-model="saveForm.parent_id" - 双向绑定

              label: 'name', - 回显哪一个属性值
                value: 'id' - 传值哪一个属性值
            回显机制【修改】：
              1.定位：v-model="saveForm.parent_id" 与 deptTree中的每一个对象的id 定位
              2.显示哪一个属性值：label: 'name',  回显对象的name属性值
            传值机制：
              ？？
          -->
          <el-cascader v-model="saveForm.parent_id"
                       :options="deptTree"
                       :props="{
                checkStrictly: true,
                label: 'name',
                value: 'id'
              }"
                       clearable>
          </el-cascader>

        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>

  </section>
</template>

<script>
import util from '../../common/js/util'
//import NProgress from 'nprogress'
import { getDepartmentListPage, removeDepartment, batchRemoveDepartment, editDepartment, addDepartment } from '../../api/api';

export default {
  data() {
    return {
      //1.分页查询的相关参数
      departments: [],  //列表数据
      pageSize: 5,      //每页显示的条数
      currentPage: 1,   //当前页
      totals: 0,        //总数量
      listLoading: false, //加载框

      //2.高级查询的相关参数
     keyword:'',

      //3.批量删除的相关数据
      sels: [],//列表选中列

      //4.添加或者修改的相关数据
      saveFormVisible: false,//编辑界面是否显示
      saveLoading: false,   //保存的加框
      saveFormRules: {  //表单的验证项
      sn: [
          { required: true, message: '请输入编号', trigger: 'blur' }
        ],
        name: [
          { required: true, message: '请输入姓名', trigger: 'blur' }
        ]
      },
      //编辑或添加的对话框里面的数据
      saveForm: {
        id: null,
        sn: '',
        name: '',
        state: 1,
        manager_id: null,
        parent_id: null,
      },
      //显示所有的部门经理
      managers: [],
      //显示部门树
      deptTree: []
    }
  },
  methods: {
    //1.获取部门列表
    getDepartments() {
      let para = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword
      };
      this.listLoading = true; //显示加载框
      this.$http.post("/department",para).then(res=>{
        this.departments = res.data.data;//给数组赋值 - 显示列表数据
        this.totals = res.data.totals;  //给总数量赋值 - 计算分页栏
        this.listLoading = false;//关闭加载框
      }).catch(res=>{
        this.$message.error("系统繁忙，请稍后重试!!!");
      })
    },
    //2.点击分页实现
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getDepartments();
    },
    //3.高级查询 - 关键字查询
    keywordQuery(){
      //防止当前页不在第一页的时候 通过关键字查询出现 当前页没有数据的情况
      this.currentPage = 1;
      this.getDepartments();
    },
    //4.删除功能逻辑
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        this.$http.delete("/department/"+row.id).then(res=>{
          this.listLoading = false;
          if(res.data.success){
            this.$message.success("删除成功");
            this.getDepartments();
          }else{
            this.$message.error("系统繁忙，请稍后再试!!!");
          }
        }).catch(res=>{
          this.$message.error("系统繁忙，请稍后再试!!");
        })
      }).catch(() => {
      });
    },
    //5.选项改变的时候触发的逻辑
    selsChange: function (sels) {
      this.sels = sels;
    },
    //6.批量删除
    batchRemove: function () {
    //获取数组中的每一个对象的id  形成新的数组
    var ids = this.sels.map(item => item.id);
    this.$confirm('确认删除选中记录吗？', '提示', {
      type: 'warning'
    }).then(() => {
      this.listLoading = true;
      this.$http.patch("/department",ids).then(res =>{
        this.listLoading = false;
        if(res.data.success){
          this.currentPage = 1;
          this.getDepartments();
        }else{
          this.$message.error("系统繁忙，请稍后再试!!!");
        }
      }).catch(res=>{
        this.$message.error("系统繁忙，请稍后再试!!");
      })
    }).catch(() => {
    });
  },
    //7.点击修改按钮弹出的对话框
    handleEdit: function (index, row) {
      this.title = "编辑";
      //弹出对话框
      this.saveFormVisible = true;
      //回显数据：创建一个新的空对象{}，然后将row中的数据拷贝一份给{}
      this.saveForm = Object.assign({}, row);
      //获取所有的经理
      this.getManagers();
      //获取部门树
      this.getDeptTree();
    },
    //8.显示新增界面
    handleAdd: function () {
      this.title = "新增";
      this.saveFormVisible = true;
      this.saveForm = {
        id: null,
        sn: '',
        name: '',
        state: 1,
        manager_id: null,
        parent_id: null
      };
      //获取所有的经理
      this.getManagers();
      //获取部门树
      this.getDeptTree();
    },
    //9.编辑
    saveSubmit: function () {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;
            //NProgress.start();
            let para = Object.assign({}, this.saveForm);
            /*
            * 1. 不修改上级部门，没有点级联框 显示的是2
            * 2.不修改上级部门，点了级联框选择过其他部门，最后选择回来 显示的是 【2】
            * 3.去掉上级部门： 【】空数组
            * 4. 选择多级的  显示的是【3，9，12】
            * 5. null  不选择的时候
            * */
            var isArr = para.parent_id;
            if(Array.isArray(isArr)){
              if(isArr.length == 0){//判断数组里面是否有值
                para.parent_id = null;
              }else{
                para.parent_id = isArr [isArr.length - 1];
              }
            }
            this.$http.put("/department",para).then(res=>{
              this.saveLoading = false;//关闭加载框
              this.saveFormVisible = false;//关闭对话框
              if(res.data.success){
                this.getDepartments();
              }else{
                this.$message.error("系统繁忙，请你不要试了！");
              }
            }).catch(res=>{
              this.$message.error("系统繁忙，请你不要试了！");
            })
          });
        }
      });
    },
    //10.获取所有的部门经理 - 员工
    getManagers(){
      this.$http.get("/employee").then(res=>{
        this.managers = res.data;
      })
    },
    //11.获取部门树
    getDeptTree(){
      this.$http.get("/department/deptTree").then(res=>{
        this.deptTree = res.data;
      })
    }
  },
  mounted() {
    this.getDepartments();
  }
}

</script>

<style scoped>

</style>